






import os
import sys
import tempfile

import torch

from .state import AcceleratorState
from .utils import PrecisionType, PrepareForLaunch, is_mps_available, patch_environment






def      _snake_case     (__lowercase     ,   __lowercase=()     ,   __lowercase=None     ,   __lowercase="no"     ,   __lowercase="29500"):
   UpperCamelCase_						=  False
   UpperCamelCase_						=  False
   if any(key.startswith('KAGGLE') for key in os.environ.keys()):
      UpperCamelCase_						=  True
   elif "IPython" in sys.modules:
      UpperCamelCase_						=  'google.colab' in str(sys.modules['IPython'].get_ipython())

   try:
      UpperCamelCase_						=  PrecisionType(mixed_precision.lower())
   except ValueError:
      raise ValueError(
          f"""Unknown mixed_precision mode: {args.mixed_precision.lower()}. Choose between {PrecisionType.list()}.""")

   if (in_colab or in_kaggle) and (os.environ.get('TPU_NAME'     ,   __lowercase) is not None):
      # TPU launch
      import torch_xla.distributed.xla_multiprocessing as xmp

      if len(AcceleratorState._shared_state) > 0:
         raise ValueError(
             'To train on TPU in Colab or Kaggle Kernel, the `Accelerator` should only be initialized inside '
             'your training function. Restart your notebook and make sure no cells initializes an '
             '`Accelerator`.')
      if num_processes is None:
         UpperCamelCase_						=  8

      UpperCamelCase_						=  PrepareForLaunch(__lowercase     ,   distributed_type='TPU')
      print(f"""Launching a training on {num_processes} TPU cores.""")
      xmp.spawn(__lowercase     ,   args=__lowercase     ,   nprocs=__lowercase     ,   start_method='fork')
   elif in_colab:
      # No need for a distributed launch otherwise as it's either CPU or one GPU.
      if torch.cuda.is_available():
         print('Launching training on one GPU.')
      else:
         print('Launching training on one CPU.')
      function(*__lowercase)
   else:
      if num_processes is None:
         raise ValueError(
             'You have to specify the number of GPUs you would like to use, add `num_processes=...` to your call.')

      if num_processes > 1:
         # Multi-GPU launch
         from torch.multiprocessing import start_processes
         from torch.multiprocessing.spawn import ProcessRaisedException

         if len(AcceleratorState._shared_state) > 0:
            raise ValueError(
                'To launch a multi-GPU training from your notebook, the `Accelerator` should only be initialized '
                'inside your training function. Restart your notebook and make sure no cells initializes an '
                '`Accelerator`.')

         if torch.cuda.is_initialized():
            raise ValueError(
                'To launch a multi-GPU training from your notebook, you need to avoid running any instruction '
                'using `torch.cuda` in any cell. Restart your notebook and make sure no cells use any CUDA '
                'function.')

         # torch.distributed will expect a few environment variable to be here. We set the ones common to each
         # process here (the other ones will be set be the launcher).
         with patch_environment(
             world_size=__lowercase     ,   master_addr='127.0.01'     ,   master_port=__lowercase     ,   mixed_precision=__lowercase):
            UpperCamelCase_						=  PrepareForLaunch(__lowercase     ,   distributed_type='MULTI_GPU')
            print(f"""Launching training on {num_processes} GPUs.""")
            try:
               start_processes(__lowercase     ,   args=__lowercase     ,   nprocs=__lowercase     ,   start_method='fork')
            except ProcessRaisedException as e:
               if "Cannot re-initialize CUDA in forked subprocess" in e.args[0]:
                  raise RuntimeError(
                      'CUDA has been initialized before the `notebook_launcher` could create a forked subprocess. '
                      'This likely stems from an outside import causing issues once the `notebook_launcher()` is called. '
                      'Please review your imports and test them when running the `notebook_launcher()` to identify '
                      'which one is problematic.') from e

      else:
         # No need for a distributed launch otherwise as it's either CPU, GPU or MPS.
         if is_mps_available():
            UpperCamelCase_						=  '1'
            print('Launching training on MPS.')
         elif torch.cuda.is_available():
            print('Launching training on one GPU.')
         else:
            print('Launching training on CPU.')
         function(*__lowercase)






def      _snake_case     (__lowercase     ,   __lowercase=()     ,   __lowercase=2):
   from torch.multiprocessing import start_processes

   with tempfile.NamedTemporaryFile() as tmp_file:
      # torch.distributed will expect a few environment variable to be here. We set the ones common to each
      # process here (the other ones will be set be the launcher).
      with patch_environment(
          world_size=__lowercase     ,   master_addr='127.0.01'     ,   master_port='29500'     ,   accelerate_mixed_precision='no'     ,   accelerate_debug_rdv_file=tmp_file.name     ,   accelerate_use_cpu='yes'     ,   ):
         UpperCamelCase_						=  PrepareForLaunch(__lowercase     ,   debug=__lowercase)
         start_processes(__lowercase     ,   args=__lowercase     ,   nprocs=__lowercase     ,   start_method='fork')








import logging

import torch
from torch import nn
from torch.nn import CrossEntropyLoss, MSELoss

from transformers.file_utils import add_start_docstrings, add_start_docstrings_to_model_forward
from transformers.models.bert.modeling_bert import (
    BERT_INPUTS_DOCSTRING,
    BERT_START_DOCSTRING,
    BertEncoder,
    BertModel,
    BertPreTrainedModel,
)


__snake_case				:      Optional[int]   		=			logging.getLogger(__name__)



class        A__(a_							):
						"""simple docstring"""






						def 			UpperCamelCase__					(    self  ,      _lowercase  ,      _lowercase  ,      _lowercase=None  ,      _lowercase=None    )     -> Tuple:
									a_						:						str 							= self.layer[current_layer](_lowercase  ,      _lowercase  ,      head_mask[current_layer]    )

									a_						:						str 							= layer_outputs[0]

									return hidden_states







@add_start_docstrings(
    '''The bare Bert Model transformer with PABEE outputting raw hidden-states without any specific head on top.''',  a_,  )
class        A__(a_							):
						"""simple docstring"""






						def __init__(    self  ,      _lowercase    )     -> List[str]:
									super().__init__(_lowercase    )

									a_						:						Tuple 							= BertEncoderWithPabee(_lowercase    )

									self.init_weights()
									a_						:						int 							= 0
									a_						:						Any 							= 0
									a_						:						Tuple 							= 0

									a_						:						Optional[int] 							= 0





						def 			UpperCamelCase__					(    self  ,      _lowercase    )     -> Tuple:
									a_						:						Dict 							= threshold





						def 			UpperCamelCase__					(    self  ,      _lowercase    )     -> List[Any]:
									a_						:						Optional[int] 							= patience





						def 			UpperCamelCase__					(    self    )     -> Dict:
									a_						:						str 							= 0
									a_						:						Optional[int] 							= 0





						def 			UpperCamelCase__					(    self    )     -> List[Any]:
									a_						:						Union[str, Any] 							= self.inference_layers_num / self.inference_instances_num
									a_						:						Optional[int] 							= (
									    F'''*** Patience = {self.patience} Avg. Inference Layers = {avg_inf_layers:.2f} Speed Up ='''
									    F''' {1 - avg_inf_layers / self.config.num_hidden_layers:.2f} ***'''
									)
									print(_lowercase    )





						@add_start_docstrings_to_model_forward(_lowercase    )
						def 			UpperCamelCase__					(    self  ,      _lowercase=None  ,      _lowercase=None  ,      _lowercase=None  ,      _lowercase=None  ,      _lowercase=None  ,      _lowercase=None  ,      _lowercase=None  ,      _lowercase=None  ,      _lowercase=None  ,      _lowercase=None  ,      _lowercase=False  ,      )     -> str:

									if input_ids is not None and inputs_embeds is not None:
												raise ValueError("""You cannot specify both input_ids and inputs_embeds at the same time"""    )
									elif input_ids is not None:
												a_						:						Dict 							= input_ids.size()
									elif inputs_embeds is not None:
												a_						:						Dict 							= inputs_embeds.size()[:-1]
									else:
												raise ValueError("""You have to specify either input_ids or inputs_embeds"""    )

									a_						:						Optional[Any] 							= input_ids.device if input_ids is not None else inputs_embeds.device

									if attention_mask is None:
												a_						:						Tuple 							= torch.ones(_lowercase  ,      device=_lowercase    )
									if token_type_ids is None:
												a_						:						List[str] 							= torch.zeros(_lowercase  ,      dtype=torch.long  ,      device=_lowercase    )

									# We can provide a self-attention mask of dimensions [batch_size, from_seq_length, to_seq_length]
									# ourselves in which case we just need to make it broadcastable to all heads.
									a_						:						torch.Tensor 							= self.get_extended_attention_mask(_lowercase  ,      _lowercase  ,      _lowercase    )

									# If a 2D ou 3D attention mask is provided for the cross-attention
									# we need to make broadcastable to [batch_size, num_heads, seq_length, seq_length]
									if self.config.is_decoder and encoder_hidden_states is not None:
												a_							,					a_							,					a_						:						int 							= encoder_hidden_states.size()
												a_						:						List[str] 							= (encoder_batch_size, encoder_sequence_length)
												if encoder_attention_mask is None:
															a_						:						Tuple 							= torch.ones(_lowercase  ,      device=_lowercase    )
												a_						:						List[Any] 							= self.invert_attention_mask(_lowercase    )
									else:
												a_						:						Optional[Any] 							= None

									# Prepare head mask if needed
									# 1.0 in head_mask indicate we keep the head
									# attention_probs has shape bsz x n_heads x N x N
									# input head_mask has shape [num_heads] or [num_hidden_layers x num_heads]
									# and head_mask is converted to shape [num_hidden_layers x batch x num_heads x seq_length x seq_length]
									a_						:						List[Any] 							= self.get_head_mask(_lowercase  ,      self.config.num_hidden_layers    )

									a_						:						List[str] 							= self.embeddings(
									    input_ids=_lowercase  ,      position_ids=_lowercase  ,      token_type_ids=_lowercase  ,      inputs_embeds=_lowercase    )
									a_						:						List[Any] 							= embedding_output

									if self.training:
												a_						:						Any 							= []
												for i in range(self.config.num_hidden_layers    ):
															a_						:						int 							= self.encoder.adaptive_forward(
															    _lowercase  ,      current_layer=_lowercase  ,      attention_mask=_lowercase  ,      head_mask=_lowercase    )

															a_						:						List[Any] 							= self.pooler(_lowercase    )
															a_						:						Optional[int] 							= output_layers[i](output_dropout(_lowercase    )    )
															res.append(_lowercase    )
									elif self.patience == 0:  # Use all layers for inference
												a_						:						Union[str, Any] 							= self.encoder(
												    _lowercase  ,      attention_mask=_lowercase  ,      head_mask=_lowercase  ,      encoder_hidden_states=_lowercase  ,      encoder_attention_mask=_lowercase  ,      )
												a_						:						Union[str, Any] 							= self.pooler(encoder_outputs[0]    )
												a_						:						List[str] 							= [output_layers[self.config.num_hidden_layers - 1](_lowercase    )]
									else:
												a_						:						Any 							= 0
												a_						:						Dict 							= None
												a_						:						Tuple 							= 0
												for i in range(self.config.num_hidden_layers    ):
															calculated_layer_num += 1
															a_						:						Optional[Any] 							= self.encoder.adaptive_forward(
															    _lowercase  ,      current_layer=_lowercase  ,      attention_mask=_lowercase  ,      head_mask=_lowercase    )

															a_						:						Optional[int] 							= self.pooler(_lowercase    )
															a_						:						int 							= output_layers[i](_lowercase    )
															if regression:
																		a_						:						Dict 							= logits.detach()
																		if patient_result is not None:
																					a_						:						Optional[Any] 							= patient_result.detach()
																		if (patient_result is not None) and torch.abs(patient_result - labels    ) < self.regression_threshold:
																					patient_counter += 1
																		else:
																					a_						:						Optional[Any] 							= 0
															else:
																		a_						:						str 							= logits.detach().argmax(dim=1    )
																		if patient_result is not None:
																					a_						:						str 							= patient_result.detach().argmax(dim=1    )
																		if (patient_result is not None) and torch.all(labels.eq(_lowercase    )    ):
																					patient_counter += 1
																		else:
																					a_						:						Tuple 							= 0

															a_						:						Union[str, Any] 							= logits
															if patient_counter == self.patience:
																		break
												a_						:						str 							= [patient_result]
												self.inference_layers_num += calculated_layer_num
												self.inference_instances_num += 1

									return res







@add_start_docstrings(
    '''Bert Model transformer with PABEE and a sequence classification/regression head on top (a linear layer on top of
    the pooled output) e.g. for GLUE tasks. ''',  a_,  )
class        A__(a_							):
						"""simple docstring"""






						def __init__(    self  ,      _lowercase    )     -> str:
									super().__init__(_lowercase    )
									a_						:						str 							= config.num_labels

									a_						:						Optional[Any] 							= BertModelWithPabee(_lowercase    )
									a_						:						int 							= nn.Dropout(config.hidden_dropout_prob    )
									a_						:						str 							= nn.ModuleList(
									    [nn.Linear(config.hidden_size  ,      self.config.num_labels    ) for _ in range(config.num_hidden_layers    )]    )

									self.init_weights()





						@add_start_docstrings_to_model_forward(_lowercase    )
						def 			UpperCamelCase__					(    self  ,      _lowercase=None  ,      _lowercase=None  ,      _lowercase=None  ,      _lowercase=None  ,      _lowercase=None  ,      _lowercase=None  ,      _lowercase=None  ,      )     -> Tuple:
									a_						:						Optional[Any] 							= self.bert(
									    input_ids=_lowercase  ,      attention_mask=_lowercase  ,      token_type_ids=_lowercase  ,      position_ids=_lowercase  ,      head_mask=_lowercase  ,      inputs_embeds=_lowercase  ,      output_dropout=self.dropout  ,      output_layers=self.classifiers  ,      regression=self.num_labels == 1  ,      )

									a_						:						Optional[Any] 							= (logits[-1],)

									if labels is not None:
												a_						:						int 							= None
												a_						:						Union[str, Any] 							= 0
												for ix, logits_item in enumerate(_lowercase    ):
															if self.num_labels == 1:
																		#  We are doing regression
																		a_						:						Any 							= MSELoss()
																		a_						:						Union[str, Any] 							= loss_fct(logits_item.view(-1    )  ,      labels.view(-1    )    )
															else:
																		a_						:						Any 							= CrossEntropyLoss()
																		a_						:						int 							= loss_fct(logits_item.view(-1  ,      self.num_labels    )  ,      labels.view(-1    )    )
															if total_loss is None:
																		a_						:						str 							= loss
															else:
																		total_loss += loss * (ix + 1)
															total_weights += ix + 1
												a_						:						Any 							= (total_loss / total_weights,) + outputs

									return outputs


